Patents by Inventor Andreas Bendicks

Andreas Bendicks has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for controlling an electrical load by means of pulse width modulation
    Patent number: 10673542
    Abstract: A method for controlling an electrical load by means of pulse width modulation, (PWM) includes specifying a setpoint switching frequency fsetpoint and a setpoint duty ratio dsetpoint and determining the carrier frequency fch of a radio transmitter. The actual switching frequency fsw of the PWM is adapted to the carrier frequency fch of the radio transmitter in such a way that a multiple k*fsw of the actual switching frequency fsw is equal to the carrier frequency fch with an integer factor k. The actual switching frequency fsw is set to the value closest to the setpoint switching frequency fsetpoint for which the amplitude of the harmonics k*fsw in the harmonic spectrum of the actual switching frequency fsw is smaller than the amplitudes of their closest lower (k?1)*fsw and upper (k+1)*fsw adjacent harmonics.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: June 2, 2020
    Assignee: Leopold Kostal GmbH & Co. KG
    Inventors: Norbert Hees, Andreas Bendicks, Marc Wiegand, Stephan Frei
  • Method for Controlling an Electrical Load by Means of Pulse Width Modulation
    Publication number: 20190372683
    Abstract: A method for controlling an electrical load by means of pulse width modulation, (PWM) includes specifying a setpoint switching frequency fsetpoint and a setpoint duty ratio dsetpoint and determining the carrier frequency fch of a radio transmitter. The actual switching frequency fsw of the PWM is adapted to the carrier frequency fch of the radio transmitter in such a way that a multiple k*fsw of the actual switching frequency fsw is equal to the carrier frequency fch with an integer factor k. The actual switching frequency fsw is set to the value closest to the setpoint switching frequency fsetpoint for which the amplitude of the harmonics k*fsw in the harmonic spectrum of the actual switching frequency fsw is smaller than the amplitudes of their closest lower (k?1)*fsw and upper (k+1)*fsw adjacent harmonics.
    Type: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Applicant: Leopold Kostal GmbH & Co. KG
    Inventors: Norbert Hees, Andreas Bendicks, Marc Wiegand, Stephan Frei